I have a problem
i want monitoring the radius service of an ACS cisco with nagios core version 3.2.1
i know radius use the udp ports 1812 and 1813 , but when i use the command check_udp
command_name check_udp
command_line $USER1$/check_udp -p $ARG1$ -s $ARG2$ -e $ARG3$
nagios show me a problem: status= "unknown" information= " With UDP checks, a send/expect string must be specified."
how can i fix the problem?
ATT
Arnold